{filelink=5561}

import java.util.Calendar;

public class SoustractionMinute
 {
  public static void main(String[] args) 
{
    Calendar maintenant = Calendar.getInstance();
    System.out.println("Heure actuelle: " + maintenant.get(Calendar.HOUR_OF_DAY) + ":"
        + maintenant.get(Calendar.MINUTE) + ":" + maintenant.get(Calendar.SECOND));

    maintenant = Calendar.getInstance();
    maintenant.add(Calendar.MINUTE, -20);
    System.out.println("Heure 20 minutes avant : " + maintenant.get(Calendar.HOUR_OF_DAY) + ":"
        + maintenant.get(Calendar.MINUTE) + ":" + maintenant.get(Calendar.SECOND));
  }
}